Tenby does Christmas in one crowded, well-rehearsed month, and the events do not all work the same way. Some you book weeks ahead, some you simply turn up to, and one is free the moment you step through the gate. The 2026 season opens on Saturday 28 November, when Father Christmas arrives by lifeboat, the town’s lights go on at dusk, and several hundred people in Santa suits run through the streets for charity. From there the calendar runs through Tudor evenings at the Merchant’s House, a grotto at Carew Castle that fills up fast, and the Boxing Day plunge on North Beach. This guide sets out the dates, the prices that were published when the organisers planned the season, and where each one differs — with the organiser named wherever a time or a stall list could still move.
Everything the town plans for the start of the season lands on Saturday 28 November 2026. Father Christmas does not arrive by sleigh but by sea: the RNLI’s all-weather lifeboat brings him in, and the local fire crew escorts him from the landing into Tudor Square. The lights are switched on at dusk that evening, though Tenby Town Council had not published the exact time when it announced the day — previous years have run to roughly a quarter to five in the afternoon, and the confirmed time will appear on the council’s events page at tenbytowncouncil.co.uk. Check nearer the date rather than building the afternoon around an unconfirmed hour, and arrive early enough to see the lifeboat come in, because the quayside and Tudor Square fill up well before the lights go on.
Before the switch-on, the Tenby Round Table puts on its Santa Run, a three-kilometre charity fun run from 11am to 12.30pm on the same Saturday. Hundreds of people run it in full Santa suits, and the route takes in the harbour and North Beach, so the best watching is along the harbour wall or on the sand. Registration runs from 10am to 10.45am at St Mary’s Church Hall, and the entry fee covers a Santa suit and a medal; there are no winners, and all the profits go to local charities. A shorter route runs for children. The run uses open roads with no closures, so runners share the carriageway with traffic — keep a hand on small children and do not step into the road to photograph a runner.
The Christmas market is moving this year. It had stood in Tudor Square, but for crowd management it shifts to the grounds of St Mary’s Church, where at least ten gazebos — and possibly more — go up for the day. Entry is through the gates on St George’s Street and Frog Street, and the stalls are local makers and food traders, with the town council lending out its own gazebos to stallholders for a nominal fee. Anyone still looking for a pitch should contact Tenby Town Council on 01834 842730 or at TenbyTownCouncil@btconnect.com. The move puts the market a short walk from Tudor Square, which matters once the switch-on crowd builds and you want to be in two places at the same time.
The National Trust’s Tudor Merchant’s House on Quay Hill dresses the season properly, and it runs “A Tudor Christmas” every Friday and Saturday from 27 November to 12 December 2026 — the dates are 27–28 November, 4–5 December and 11–12 December. The house is decked in greenery and the staff wear Tudor costume, and the Lord of Misrule hands a Tudor toy to children under ten while stocks last. The event itself is free, but normal admission applies, so National Trust members walk in without paying and everyone else pays the house’s standard entry. Last entry is 2.30pm, there is no booking, and the house is genuinely cold in winter, so wrap up. The entrance has steps and there are stairs to the upper floors, there are no toilets on site (the nearest are about 160 yards away), and dogs are not allowed. The Tudor Merchant’s House and Museum guide sets out the house and the museum on Castle Hill.
Carew Castle’s “Christmas at Carew” runs on 5–6 and 12–13 December 2026, from 10am to 4pm, with the rooms decorated in a Tudor Christmas theme. The grotto costs £12 per child and that includes a gift and one free adult; extra adults pay the standard castle admission of £8 adult, £6 child, or £25.50 for a family. There is also a Twelve Days of Christmas trail at £2.50 per child, and the grotto is on the ground floor and wheelchair-accessible. The thing to know is that advance booking is essential and bookings are non-refundable, so do not leave this one to the morning of. The Nest Tearoom stays open with hot chocolate. The Carew Castle guide and the day-trips article put the castle itself in context.
Folly Farm runs its Santa’s Grotto on winter weekends, and the contrast with Carew is the point: this one needs no booking. The published 2026 dates are 7–8, 14–15, 21–22 and 28–29 November, then 4–6, 11–13 and 18–20 December, from 10am to 4pm, at £9.50 per child including a gift — but those figures came from the farm’s site rather than a page checked this season, so check the Folly Farm site or call 01834 812731 before you set out. Because there is no booking, you can use it as the wet-day answer to a December weekend, and the indoor funfair gives children somewhere to burn off the afternoon once the grotto is done. The Folly Farm guide and Tenby with kids cover the wider day.
De Valence Pavilion fills December with shows, and the confirmed one is Only Men Aloud’s Christmas concert on Saturday 12 December, doors at 7pm and the evening running to about 11pm; reserved seats are £32 plus a £4 booking fee through Gigantic, all ages are welcome and under-18s must be accompanied. Martin Kemp brings “Christmas Night Fever” on Friday 11 December, with tickets through SeeTickets, and Big Mac’s Wholly Soul Band plays Saturday 19 December, doors at 7.30pm, through Gigantic — for those two, check the seller for the current price rather than trusting a printed figure. Films 4 Tenby screens on Tuesday 1 December. The venue is accessible and has no on-site parking, so use the nearby public car parks.
Switch-on day is the one date when Tenby’s parking pressure behaves like August. The Santa Run uses open roads with no road closures, so nothing is shut off for the run itself — the town simply gets busy, and the streets around the harbour and Tudor Square are the slowest part of the afternoon. Arrive early, park once and walk. The parking guide sets out the multi-storey, South Beach and the other car parks, and which streets to avoid circling. Tudor Square and St Mary’s Church are a short walk apart, so you can hold a spot for the switch-on and still get to the market without moving the car.
The season ends the way it always has, with the Tenby Boxing Day Swim on North Beach on Saturday 26 December 2026. Swimmers gather from about 11am and plunge around 11.30am, in fancy dress, and come out to medals and hot soup; the Tenby Sea Swimming Association runs it for local charities. The details are confirmed nearer the date on tenbyboxingdayswim.co.uk, so check the swim’s own page before you commit a morning to it. The winter guide describes what the walled town is like once the crowds and the Caldey boats have gone, and how the swim fits into the out-of-season town.
The season’s events fall into three patterns, and getting them the wrong way round is the main mistake to avoid. The switch-on, Santa Run and market on 28 November are free to watch and need no booking; the Tudor Merchant’s House is free with normal admission and needs no booking either. Carew Castle’s grotto must be booked in advance and the money is not refundable. Folly Farm’s grotto is the opposite — turn up, pay on the day. For the concerts, buy through the named seller. Across all of it, remember that this is a plan drawn from what the organisers had published by early October: the switch-on time, the full market stall list and some ticket prices were still being finalised, so check each organiser’s own page — the town council, the National Trust, Carew, Folly Farm, De Valence and the swim association — in the week before you travel. When to visit weighs the season as a whole, and the Blues Festival lands on 13–15 November if you want to start the month earlier.